Specified by engine builders and used in Tractor Pull and other performance events Dominator by Amsoil is the best. ( Make sure to select viscosity that goes with the tolerances indicated by your engine builder).

It’s no wonder, OEM’S have used mass media advertising for decades to get our oil changed every 3000 miles. It’s branded into our psychology.

However, the technology has been available for some time.

I began using Amsoil in roughly 1995 at which time their oil change was 13,000 miles. I was only able to go 7000 miles before my subconscious took over and forced me to change the oil. The next time I went 9000 miles and finally went 14,000 miles. It took that long to gain trust in the Amsoil product and Amsoil’s written guarantee.